VPS: add the WristCode gateway stack

server/vps/Wristcode/compose.yml

@@ -0,0 +1,33 @@
+# WristCode gateway: the backend for the WristCode Apple Watch app (git.gbrown.org/gib/wristcode).
+# It holds a WebSocket to every T3 Code server, serves the watch's HTTPS API, and sends APNs pushes.
+# NPM serves wristcode.gbrown.org and forwards to wristcode-gateway:8080 over nginx-bridge.
+#
+# .env beside this file (mode 600):
+#   APNS_KEY_ID=...                the APNs key's ID
+#   APNS_TEAM_ID=GQJNM5YK2M
+#   APNS_KEY_PATH=/data/apns.p8    the .p8 file, in ./data
+#
+# Operator CLI: podman exec -it wristcode-gateway wristcode <host add|pair|device list|...>
+networks:
+  nginx-bridge:
+    external: true            # ALWAYS external; see AGENTS.md §5
+
+services:
+  wristcode-gateway:
+    image: git.gbrown.org/gib/wristcode-gateway:latest
+    container_name: wristcode-gateway
+    hostname: wristcode-gateway
+    domainname: wristcode.gbrown.org
+    networks: ['nginx-bridge']
+    env_file: [.env]
+    environment:
+      - TZ=America/New_York
+    # The image runs as `bun` (uid 1000). keep-id maps it to gib, so ./data stays gib-owned (AGENTS.md §3.2).
+    userns_mode: "keep-id:uid=1000,gid=1000"
+    volumes:
+      - ./data:/data:z        # lowercase :z survives update-containers recreates, as in Agentchat
+    restart: unless-stopped
+    healthcheck:
+      test: wget -qO- http://127.0.0.1:8080/v1/health || exit 1
+      interval: 30s
+      start_period: 10s

server/vps/Wristcode/podman-wristcode.service

@@ -0,0 +1,24 @@
+# TEMPLATE for a rootless user unit.
+# Install to ~/.config/systemd/user/podman-<name>.service then:
+#   systemctl --user daemon-reload && systemctl --user enable --now podman-<name>.service
+# Requires linger:  sudo loginctl enable-linger $USER
+[Unit]
+Description=Podman Compose: wristcode
+After=network-online.target
+Wants=network-online.target
+StartLimitIntervalSec=300
+StartLimitBurst=3
+
+[Service]
+Type=oneshot
+WorkingDirectory=%h/Server/Wristcode
+ExecStart=/usr/bin/podman compose up -d
+ExecStop=/usr/bin/podman compose down
+RemainAfterExit=yes
+TimeoutStartSec=300
+TimeoutStopSec=60
+Restart=on-failure
+RestartSec=30
+
+[Install]
+WantedBy=default.target

server/vps/verify-rootless

@@ -17,7 +17,7 @@ p=$(sysctl -n net.ipv4.ip_unprivileged_port_start 2>/dev/null)
   || bad "ip_unprivileged_port_start=$p (NPM cannot bind :80/:443)"
 
 echo "== user units =="
-for s in postgresql bang completeuphoria sierraandtyler uptime portainer beszel authentik tools isponsorblocktv vaultwarden infisical rustdesk nginx-proxy-manager gbrown-agent; do
+for s in postgresql bang completeuphoria sierraandtyler uptime portainer beszel authentik tools isponsorblocktv vaultwarden infisical rustdesk nginx-proxy-manager gbrown-agent wristcode; do
   st=$(systemctl --user is-active "podman-$s.service" 2>/dev/null)
   [[ "$st" == "active" ]] && ok "$s" || bad "$s is $st"
 done